If the social-networked iPhone app discovery app Chorus isn’t your cup of tea, your best bet is to hit Twitter to see which iPhone apps are trending hot. AppStoreHQ makes it easy to keep tabs on the Twittersphere and breaks down which apps tweeple around the world are tweeting about. It’s a points based system, so the more times a certain app gets tweeted, the higher it ranks in the “Most Popular iPhone Apps on Twitter” list.

Coincidentally, Chorus is the hottest iPhone app on Twitter right now – beating out Waveboard, the Google Wave iPhone app, by a huge margin. If you haven’t yet checked out Chorus, download the free app and give it a go.